<template>
	<div>
	  <div class="search">
		  <input v-model="keyword" class="search-input" type="text" placeholder="输入城市名或拼音"/>
	  </div>
	  <div class="search-content" ref="search" v-show="keyword">
		  <ul>
			  <li class="search-item border-bottom" 
				  v-for="item of list" 
				  :key="item.id"
				   @click="handleCityClick(item.name)">
				  {{item.name}}
			  </li>
			  <li class="search-item border-bottom" v-show="hasNoData">没有找到匹配数据</li>
		  </ul>
	  </div>
	</div>
</template>

<script>
import Bscroll from 'better-scroll'
export default{
  name:'CitySearch',
  props: {
	  cities:Object
  },
  data (){
	  return {
		  keyword: '',
		  list: [],
		  timer: null
	  }
  },
  computed: {
	  hasNoData () {
		  return !this.list.length
	  }
  },
  watch: {
	  keyword (){
		  if(this.timer) {
			  clearTimeout(this.timer)
		  }
		  if(!this.keyword) {
			  this.list = []
			  return
		  }
		  this.timer = setTimeout(() => {
			  const result = []
			  for (let i in this.cities) {
				  this.cities[i].forEach((value) => {
					  if (value.spell.indexOf(this.keyword) > -1 || value.name.indexOf(this.keyword) > -1){
						  result.push(value)
					  }
				  })
			  }
			  this.list = result
		  } ,100)
	  }
  },
  methods: {
	  handleCityClick (city) {
		  this.$store.commit('changeCity', city)
		  this.$router.push('/')
	  }
  },
  mounted () {
	  this.scroll = new Bscroll(this.$refs.search)
  }
}
</script>


<style lang="stylus" scoped>
@import '~styles/varibles.styl'
.search{
	height:36px;
	padding:5px;
	background:$bgColor
}
.search-input{
	height:31px;
	line-height:31px;
	text-align:center;
	border-radius:5px;
	width:100%;
	color:#666;
	padding:5px;
	box-sizing:border-box;
	outline:none;
}
.search-content{
	position:absolute;
	right:0;
	left:0;
	z-index:1;
	bottom:0;
	overflow:hidden;
	top:79px;
	background:#eee;
}
.search-item{
	line-height:31px;
	padding-left:10px;
	color:#666;
	background:#fff;
}
</style>
